Re: HELP! Trying to upgrade memory.

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#20080

From: michael hember
Date: Wed, 20 Jan 1993 08:48

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I have a 486-66, ALI-M1409 chipset motherboard with 1991 AMI bios
and have experienced the same problem only worse....

It had 4 1Meg SIMMs in bank 0 and everything was fine with this config
I then added 4 1Mx9 70nS SIMMs in bank 1 and the system now tells me that
I only have 1Meg of RAM and no extended memory.
If I take the SIMMs out of bank 1 it goes back to 4Meg again
There are no DIP switches or jumpers on the board for memory config.

The new SIMMs look slightly different to the old SIMMS in as much as the
old SIMMs have 3 chips all the same size with 8 legs on each side
2off Pt no.- HM514400AS7
1off Pt no.- HM511000AJP7

new SIMMs have 3 chips 2 large, 1 small with 4 legs on each side
2off Pt No.- M514256A-80J   (OKI)
1off Pt No.- M51C256-80     (OKI)

Lets hope someone out there is clever enough to solve our problems

regards

Mike Hember.

email - mjh@crosfield.co.uk    Tel ++44-0442-230000 x3221

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Message-ID: <15960@med1.crosfield.co.uk>

Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!ibmpcug!robobar!stl!crosfield!mjh

References: <1993Jan4.174315.62446@cc.usu.edu>

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Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!ibmpcug!robobar!stl!crosfield!mjh
From: mjh@crosfield.co.uk (michael hember)
Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.misc
Subject: Re: HELP! Trying to upgrade memory.
Message-ID: <15960@med1.crosfield.co.uk>
Date: 20 Jan 93 08:48:57 GMT
References: <1993Jan4.174315.62446@cc.usu.edu>
Organization: Crosfield Electronics, Hemel Hempstead, United Kingdom.
Lines: 26

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